Apparatus for repairing pneumatic tires.



W. J. STARK. APPARATUS FOR REPAIRING PNEUMATIC TIRES.

APPLICATION FILED NOV.l5 ,1907.

Patented Apr. 27, 1909.

3 SHEETS-SHEET 1.

Witnesses W. J. STARK.

' APPARATUS FOR REPAIRING PNEUMATIC TIRES.

'APPLIGATION FILED NOV. 15,1907.

' Patented Apr. 27, 1909.

3 SHEBTSSHEET 2.

, fildentoz,

WSM

W. J. STARK.

APPARATUS-FOR REPAIRING PNEUMATIC TIRES.

APPLICATION FILED NOV. 15,1907.

Patented Apr. 27, 1909 3 SHEETS-SHEET 3.

UNITED STATES WILLIAM J. STARK, OF SALT LAKE CITY, UTAH.

APPARATUS FOR REPAIRING PNEUMATIC TIRES.

No. 919,891. Specification of Letters Patent. Patented April 27, 1809.

Application filed November 15, 1907. Serial No. 402,835.

To all whom it may concern:

Be it known thatl, VVILLIAM J. STARK, a citizen of the United States,residing at Salt Lake'City, in the county of Salt Lake and State ofUtah, have invented certain new and useful Improvements in Apparatus forRe-, pairing Pneumatic Tires, of which the followmg is a specification.

Thisinvention relates to an apparatus em-v ployed in repairing puncturesand breaks in pneumatic tlres and also for replacing or restoring thevalve'tubes, and has for its object to improve the'construction andincrease the efBcie-ncy and utility of devices of this character.

With these and other objects in View, the

invention consists in certain novel features f of construction, ashereafter shown and described and'specifically pointed out in the ig. 5is a section on the line 55 of Fig. 4.

Fig. 6 is a longitudinal section of the form of mold employed inrepairingan' ordinary carriage tire. Fig. 7 is an end elevation of themold shown-in Fig. 5. Fig. 8 is a longitudinal section of the form ofmold employed in repairing bicycle tires. Fig. 9 is an end elevation ofthe form of mold shown in Fig. 8. Fig 1O is'a side elevation of theimproved apparatus in open position. 1 Figs. 11, 12 and 13 are sectionalviews of forms of dies emplo edupon various constructions of tires.

The improved apparatus com rises a hollow base 10 having a vertical holow portion 11 and'a horizontal portion 12 communicating with the upperend of the vertical portion 11. The hollow interior 14 of the threeportions 10'1112 forms a continuous steam chamber, as shown, and isstrengthenedby transverse ribs 15, to enablethe device to withstand thepressure to which it will be subjected, A steam'pipe 16 leads into thesteam chamber 14 at its 11 per portlon and a oo drainpi e 17 leads fromt e steam chamber 14 at its owest point, the drain pipe having a Icontrolling valve 18, and the steam pipe 16 i is provided with acontrolling valve 19.

blidably disposed upon the hollow base 10 is a hollow movable member 20,the interior I portion 21 of the movable member forming a steam chamber,and into which a steam pc 22 leads and provided with a c ontro ing valve23.

i from which a standard 25 rises and suitably threaded to receive arelatively large screw 26, the screw bearing against the rear side ofthe movable member 2Q and rovided with a hand operating wheel 27. '1 einner end of the screw 26 is swiveled in a two-part block 2829 securedby bolts 30 to the rear of the movable member 20. By this means it willbe obvious that the rotation of the screw will move the movable member20 toward or The movable member. 20 1s provided with a drain pipe 31leading from its lower portion and provided with a controlling valve 32.The steam pipes 16 and 22 lead into a main supply pipe indicated at 33,the pipe 22 being provided with universal couplings 3435, to enable thesteam ipe 22 to-be moved with the movable mom or 20. The drain pipe 31is also provided with a suitable universal coupling 36 forthe samepurpose. Bythis means it will be obvious t at steam may be applied toeither the chambers 14 and 21 separately or at the same time, asrequired,

valves 1923, and the water of condensation drained from the steamchambers when required through the drain pipes 17-31 by simply closingthe steam valves and opening the valves 18'32.

The mold ortion 37 of the apparatus is located upon t 1e base 10 andbetween the vertical portion 11' and the movable member 20, and isformed with vertical sides 38-39 and conforming to the lower ortion ofthe tire represented at 40, the mo d being formed in curved shape toconform to the radius of the tire, as represented in Figs. 4, 6 and 8.

The die portion of the apparatus is represented at 41 and placed betweenthe space-d sides 38-39 of the mold, and conforms interiorly to theupper portion of the tire, as shown in Figs. 1, 5, 11, 12 and 13.Bearing upon the die 41 is a plate 42 in which a screw 43 is swiveled.The screw 43 is ,threaded through a bar 44 provided with a lon itudinalslotted projection 45 at one end, t e slot The base 10 is formed with anextension 24 by simply manipulating the controlling away from thevertical portion 11 of the base.

-5152 extend, the threaded slotted arm 44 extending at one end beneaththe bars 51-52. By this means it will be obvious that the bars 5152 andthe pin 46 co-act to support the threaded member 44, and thus permit thescrew 43 to be employed as a pressure element upon the die 41, which isof the c1encher type.

.Extending between the standards 474 is a stop element 53 bearingbeneath the bar 44 when the latter'is operative position and with itsrear side inclined to receive an inclined "portion 54 u on the slottedend of the bar 44 when the atter is in its inoperative osition, as shownin Fig. 10, and thus enab e the bar 44, with its screw 43 and plate 42,to assume a backwardly inclined position and thus be out of the way toenable the tires, molds and dies to'be inserted into or removed from theapparatus.

Formed. in the opposite sides of the base 10 are longitudinal guide ways55- 56, and ri idly connected to the sides of the movab e member 20, asby bolts 5758, are anchor plates 5960, the lower terminals of the anchorplates'having lateral ofisets 6061, fitting into the channels 5556. Bythis means the member 20 ismovably connected to the base 10, andeffectually prevented from dis lacement therefrom by the anchor plates.3y this simple means it will be obvious that any size of mold may besupported between the members 10-1 120, and that any form of die mayalso be employed in com nection with the apparatus, so that any of thevarious forms and sizes of tires may be sup orted therein and repaired,as hereafter exp ained.

In Fig. 11 is shown the form of die which will be employed in repairingwhat is known as the Dunlap or flat base tires; in Fig. 12

is shown the form of die which willbe employed in repairing what isknown as the Fisk tire; and in Fig. 13 is shown the form of die whichwill be employed in repairing an ordinary single tube tire, and itis-obvious that the mold and dies may be varied to any required extentto fit any of the various forms of tires manufactured,'without departingfrom the principle of the invention.

In the apparatus thus described, the operation is as follows :W'hen apuncture or fracture or other injury occurs to a tire,

the tire is removed from the wheel and a member 20, and the screw 26operated to' hold the mold in position, the member 44, with its screw43, having been turned up in the position shown in Fig. 10. A suitablepatch to cover the injury is provided and the tire inserted with theinjured portion within the mold and the patch disposed over the punctureor other injury. sponding to the tire to be repaired is then insertedbetween the Vertical side members 3839 of the mold, the member 44restored to its operative position with its free end beneath the bars51-52, and the screw 43 operated to cause the plate 42 to bear with therequisite pressure upon the die. Steam isthen admitted into one or bothof the chambers 1421 to produce the requisite vulcanizing temperature.

If a very high temperature is required the steam is admitted through thecontrolling valves into both of the chambers 1421, but

the complete and easy control of the tern perature.

If a fracture or puncture is upon an ordinary flat tire, the tire isdisposed over the upper face of the portion 12, as' represented at 62 inFig. 1, and a block 63 disposed on the tire over the patch which hasbeen disposed over the injury; and a lever 64 inserted at one endbeneath the member 44, or the bars 5152, as the case may be, and aWeight 65 suspended from the lever to provide the requisite pressure.The heat of the portion 12 of the device is thus utilized to produce therequisite vulcanization, as may be obvious.

The apparatus is simple in construction, can be cheaply manufactured andoperates successfully for the purposes described, and can be readilyapplied to all sizes and forms of tires, as above described. I

An air bag represented at 66' is inserted within-the tire opposite thepoint where the injury occurs and inflated to provide the requisiteresistance to the pressure of the die and hold the tire in positionduring the vulcanizing o eration.

While t e preferred form of the embodiment of the apparatus is hereinshown and described, it will be understood that various modificationsmay be employed-witln'n the scope of the appended claims withoutdeparting from the principle of the invention or sacrificing any of theadvantages.

The patch employed may be of any desired structure or material, but willenerally be of a combination of'prepared'ru her and A die 41 correingthe valves 1923, thus providing for to be repaired I mass;

' other injury is small, the tire will be turned with the injured parttoward the chamber 14 or21 asgthe'case may be, and steam admitted tothat chamber only, so that the good parts of the tire are not affectedby the heat;

The-hub of the hand wheel 2'7 is provided with one member 68 of a.knocker -or jar device whilethe other member 67 of the knocker or jardevice is keyed or otherwise rigidly connected to the screw 26,

so thata knock or jar may be imparted to the screw, when required, byturning the hand wheel backward to. the limit of the play or loosenessof the knocker and suddenly moving the wheel forward. By this simplemeans the force of the screw may be materially increased.

Having thus described the nature of the invention, what is claimed asnew is 1. -In an apparatusof the class described, a hollow base having ahollow vertical portion terminating in a hollow horizontal extensionproviding a continuous internal steam chamber and an extended upperheating surface, a .membcr movable upon said base and provided with aninternal steam chamber, means for adjusting said movable member towardand away from said vertical portion, means cooperating with saidadjusting means to effect a knocking force to the latter and a molddevice bearing upon said base and maintained against'said verticalportion by said movable member.

2. In an a paratus of the class described, a hollow base h terminatingin a hollow horizontal extension roviding a. continuous internal steamchamer and an extended upper heating surface, a member movable upon saidbase and rovided with an internal steam cham er, means for adjustingsaid movable member toward and away from said vertical portion, meanscooperating with said adjusting means to effect a knocking force to thelatter, a mold device bearing upon said base and maintained against saidvertical portion by said movable member, and means for supplyin steamindependently to' saidsteam cham )er.

3. In an apparatus of the. class described, a stationary steam chamberhaving a horizontal ortion and a vertical portion at one end an astandard having a threaded aperture at the other end, a movable steamchamber disposed upon said horizontal portion, a mold device disposedupon said sta tionary chamber, a screw engaging the threaded aperture ofsaid standard and bearing against said movable chamber, a head carried,by said screw and provided with spaced radial lugs, a hand wheellocated upon said screw with its hub provided with aving a hollowvertical portion spaced radial lugs extending between the lugs of saidhead,-where by a knocking force may be applied to the screw.

{1. In an apparatusof the class described, a stationary chamber having ahorizontal portion and a vertical portion, a movable steam chamberdisposed upon said horizontal portion andprovided with a pivot pin, amold device including a die and disposed upon said stationarv chamber,means for adjusting said movable chamber toward the vertical portion andagainst the mold device, a bar having a slot at one end and a threadedintermediate aperture and en aging said pin by said slot, means carriedy said stationary chamber for detachably supporting the free end of saidbar, and a screw en aging the threaded aperture of said bar an operatingupon. the die portion of said mold device.

5. In an apparatus of the class described,

chamber for detachably supporting the free end of said bar, and a screwengaging the threaded a )erture of said bar and operating upon the ieportion of said mold device, said bar, when released, adapted to swingupon said pin and be engager by said stop e e ment. 6. In an apparatusof the class described, a stationary steam chamber having a horizontalportion and a vertical portlon, said vertical portion having spacedstandards with transverse apertures, sto bars detachably engaging saidstandar a ertures, a movable steam chamber dispose upon said horizontalortion and rovided witha ivot pin, a 'molr' device inc uding 'a' die amdisposed upon said stationary chamber, meansor adjusting said movablechamber toward the vertical portion and against the mold ,device, a barhaving a slot at one end and a threaded intermediate aperture andenaging said pm by said slot and adapted to bear beneath said stop barsat the free end, and a screw engaging the threaded a erture of said barand o crating upon the die portion of said mold evice.

7. In an apparatus of the class described, a stationary steam chamberhavinga horizontal portion and a vertical portion, a movablesteamchamber dis. osed upon said horizontal ortion, a mold device havinspaced vertlcal sides and disposed u on sai stationary chamber, a dieoperating etween the vertical sides of said mold, means for adjustingsaid movable chamber toward the vertical portion of said stationarychamber and against the mold device, and means for imparting pressure tosaid die.

' 8. In a device of the class described, a mold having spaced verticalsides, a die disposed between said sides, means for supportlng said moldagainst lateral movement, and means for exerting pressure upon said die.

9. In an apparatus of the class described,

a stationary chamber having a horizontal portion and a vertical portion,the horizontal portion having guide ways formed therein, a movable steamchamber disposed upon said horizontal portion and provided withdepending anchor plates for engagement in-said guide ways to hold themovable chamber against lateral displacement and to guide it in itsmovement upon the horizontal portion of the stationary chamhorizontalportion and provided with spaced standards having a transverse pin and asuitable element between the standards, a bar having a slot at one endand a threaded aperture intermediate its ends, said bar engaging, saidpin by said slot,

means carried by the stationary member to support the free end of saidbar, and a screw engaging the threaded aperture of said bar andoperating upon the die portion of the mold device, said bar and saidscrew being sustained by the, movable chamber when the latter is out ofo erative' relation with the stationary cham er and the mold device withsaid bar in engagement with said stop.

11. In an apparatus of the class described, a hollow base having ahollow vertical portion terminating in a hollow horition, meanscooperating with the adjusting means to effect a knocking force to thelatter and a mold device bearing upon, said base and maintained againstsaid vertical portion by said movable member.

12. In an apparatus of .the class de' scribed, a hollow base having ahollow vertical ortion terminating in a hollow horizonta extension torovide a continuous internal steam. cham )er and an extended upperheating surface, a member movable upon said base and provided with aninternal steam chamber, means for adjusting said movable member towardand away from said vertical portion, a mold device bearing upon saidbase and maintained against said vertical portion by said movablemember, a screw cooperating with said. mold device, and means connectedto the movable member to sustain said screw when the movable member isin inoperative position.

13. In an apparatus of the class described, a stationary steam chamberhavinga horizontal portion and a vertical portion at one end, a movablesteam chamber dis osed upon said horizontal portion, a mo d devicedisposed upon said stationary chamber, means constructed and arranged tooperate the movable chamber toward and away from the vertical ortion ofthe steam chamber and said mo (1 device, and means cooperating with theaforesaid means to efl'ect a knocking force to the latter.

In testimony whereof I afiix my signature, in presence of two witnesses.

' WILLIAM J, STARK, Vitnesses:

HYRUM Bonn, V GEORGE H. PUMPHREY.

